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The use of detailed kinetics for modeling aerospace propulsion devices
Acta Astronautica ( IF 3.1 ) Pub Date : 2022-09-23 , DOI: 10.1016/j.actaastro.2022.09.045
V.F. Nikitin , E.V. Mikhalchenko , L.I. Stamov

A three-dimensional numerical simulation of a combustion chamber with a continuous rotating detonation wave was studied. A nozzle-type main system feeding was located at the end part of the chamber, and an additional feeding from the inner and outer walls of the annular channel was considered. A hydrogen-oxygen mixture was considered as a fuel. A detailed kinetic mechanism by Z. Hong (2010) consisting of 20 reactions with 9 components was used to simulate chemical processes. Various relations of the fuel were considered: lean mixture [H2]:[O2] = 1:1, stoichiometric mixture [H2]:[O2] = 2:1, and rich mixture [H2]:[O2] = 3:1. Besides, either the same mixture, or additional oxygen, or air was supplied from the side-wall feeding system. For all the considered feeding options, a detonation mode was obtained, and the traction characteristics were calculated.



中文翻译:

使用详细动力学建模航空航天推进装置

研究了连续旋转爆震波燃烧室的三维数值模拟。喷嘴式主系统进料位于腔室端部,并考虑从环形通道的内外壁进行额外进料。氢氧混合物被认为是一种燃料。Z. Hong (2010) 的详细动力学机制由 9 个组分的 20 个反应组成,用于模拟化学过程。考虑了燃料的各种关系:稀混合气[H 2 ]:[O 2 ] = 1:1,化学计量混合气[H 2 ]:[O 2 ] = 2:1,富混合气[H 2 ]:[O 2] = 3:1。此外,从侧壁进料系统供应相同的混合物或额外的氧气或空气。对于所有考虑的进料选项,获得了爆轰模式,并计算了牵引特性。

更新日期:2022-09-24
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